body {
  height: 100vh;
  overflow: hidden;
}
.city_nav {
  border-bottom: 1px solid #eee;
}
.city_select_content {
  background-color: #fff;
  height: calc(100vh - 45px);
  overflow: hidden;
  position: relative;
  .city_main {
    .city_group {
      padding: 10px;

      .city_group_title {
        font-size: 13px;
        height: 40px;
        display: flex;
        align-items: center;
      }

      .city_group_content {
        .city_name {
          height: 40px;
          display: flex;
          align-items: center;
          color: #000;
          border-bottom: 1px dashed #ccc;
        }
      }
    }
  }
  .letters {
    position: absolute;
    right: 5px;
    top: 5px;
    height: 90%;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    .letter_item {
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 14px;
      color: #333;
      border-radius: 50%;

      width: 20px;
      height: 20px;
    }
    .active {
      background-color: #21b97a;
      color: #fff;
    }
  }
}
